XXX "telnet fe80::2%lo0" succeeds. this is very old kame/hydrangea bug.
clear scope id portion (s6_addr16) if the outgoing interface is NOT a loopback interface ("NOT" was missing).
* kame/sys/netinet6/ip6_mroute.c (ip6_mdq): loosened scope check in ip6_mdq() for packets forwarded to a register I/F. Without this, such packet could be mistakenly discarded. In response to: a report from Noriaki Takamiya <email@example.com>
… I/F in response to a report from Noriaki Takamiya <firstname.lastname@example.org>
(not fully tested)
for 2000/4/12 mrt6msg change (is not used in kame tree). freebsd40 and openbsd27 are shipped with old declaration, so we need to provide backward compat to some degree.
…shipped with old one - need to keep backward compatibility).